The idea was simple–an iOS Shortcut that I could call from a sharesheet on an OF task that starts a timer in Timing App. I do a lot of work offline and wanted to start measuring the time I spend. With a lot of help from @TimingApp and @Omnifocus here’s the result https://www.icloud.com/shortcuts/15ff333af6cb441d9f9566dcf6f71670
Note you will need to add your own Timing API Key https://web.timingapp.com/docs/#introduction
The next step is a Shortcut that stops the timer and marks the task complete.